Suspension thrust-resisting attachment for presses



w. A. JENNINGS. SUSPENSION THRUST RESISTING ATTACHMENT FOR PRESS ES.

APPLICATION FILED MAR. 22, 1921. v

Patented MEL) 30, 1922.

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UNITE STATES WILLIAM A. JENNINGS. OF RAYTOWN. MISSOURI.

SUSPENSION THRUST-RESISTING ATTACHMENT FOR PRESSES.

Application filed March 22, 1921.

To (ZZZ 1071,0171, it may concern Be it known that l. lV'ILLrnr A. JnNNiNos, citizen of the United States. and resident of Raytown. county of Jackson, State of Missouri. have invented a certain new and useful Improvement in Suspension Thrust- Resisting Attachments for Presses, of which the following is a complete specification.

This invention relates to suspension thrust resisting attachments for presses, and more especially to attachments for presses of that class for use in placing in position and removing from position pinion gears and collars from shafts.

One of the objects of the invention is to produce a device of this character whereby the ultimate application of pressure will be to apply a tensile strain on the device of the invention and not a thrusting strain on the shaft worked on, as is true with all devices of this character with which I am familiar.

A still further object is to produce a de vice of this character whereby provision may be made for accommodating shafts provided with reduced extensions at their ends.

Another object is to produce a device of this character which will accommodate shafts of any length and reasonable diameter.

Another object is to provide means whereby the primary application of pressure will always be applied directly to the pinion or collar to be placed in position, and in which the shaft is supported throughout its length against springing or bending movement.

A still further object is to produce a device of this character of simple. strong, dur able, etiicient and inexpensive construction; and in order that it may be fully understood. reference is to be had to the accompanying drawing. in which Figure 1 is a vertical section of parts conventional in any press and also shows the attachment in operative relation thereto.

Figure 2 is a perspective view of the thrust resisting device of the invention, partly broken away to more clearly illustrate the same.

Figure 3 is a section similar to that of Figure 1, but illustrates the positioning of a. collar on a shaft formed with a reduced extension at its lower end.

Figure 4: is a vertical section of the final stage of placing a collar on a shaft of Specification of Letters Patent.

Patented May 30, 1922.

Serial No. 454,523.

smaller diameter than that of the previous device.

Figure 5 is a view of one stage of the removal operation of a collar from a shaft.

In the said drawing. where like reference characters identify corresponding parts in all of the figures, 1 represents a suitable support constituting a part of any conven 'tional type of press provided with an open ing 2 for a purpose which will hereinafter appear. 3 is the power applying shaft of a press of the character mentioned formed, by preference, at its lower end with a reduced extension 4: for a purpose which will here inafter appear and threaded through a power applying gear wheel 5 mounted between supports 6 and adapted to be rotated by any suitable power for the purpose of causing the power applying shaft to move downwardly or upwardly according to the direction of rotation of the gear wheel.

The device of the invention consists of a tubular thrust suspension device 7, provided with a closure 8 at its lower end which is provided with a perforation 9for a purpose which will hereinafter appear. The internal diameter of member 7 will be sutlicient to accommodate shafts of the greatest diameter ordinarily worked upon in a press of the character mentioned, and is equipped at its upper end with a head or collar 8. threaded or otherwise sef-ured to member 7. formed with a shoulder 0 which is adapted to rest on the face of the support ll. and member 7 will be suspended in such position by its head. it being understood that it may be made of any length found desirable to accommodate the longest shaft ordinarily worked upon. as an opening may be made in the floor or in the ground to accommodate a thrust device of unusual length.

The operation of the device is as follows: For instance, it is found desirable to place a pinion on shaft 10 at a point either flush with the face of head 8 or at a point above such plane (see Figure 1). The shaft 10, in this instance, being of substantially the same diameter as the tube 7, will be efficiently supported by such tube against any tendency it may have to be sprung out of line, but as such shaft is not of sufiicient length to find abutment on closure 8, a spacing device 11 is inserted in the tube against which said shaft will abut as shown. In Figure 3, shaft 10 is formed at its lower end with a reduced extension 12, and in order to accommodate said extension so that the pressure shall not fall thereon, a hollow spacing device 11 is supplied, which will receive the reduced extension and the pressure will be applied on the shoulder formed on the shaft. In Figure 4, the shaft 10, is of smaller diameter than the tube 7, and is, therefore, supplied not only with a solid spacing device 11, but is snugly fitted in a tubular sheath lei of substantially the same internal diameter as the shaft and external. diameter as said member 7 in order to support said shaft against any tendency it may have to be forced out of line by the application of pressure.

Referring now to Figure 1, pinion 15 (in Figures 3 and i, collars 16), is forced onto the shaft by downward pressure applied. by shaft 3. on a spacing sleeve 17 fitted over the reduced end 4, said sleeve being of substantially the same internal diameter the shaft- 10,and coming into abutment with one face of the pinion 15 (or collars 1(5), and when pressure is applied will force the pinion down upon said shaft as will be readily un derstood.

Referring now to Figure 5. it will be seen that when it is necessary to force a pinion or collar 16 from position on a shaft, the shaft is inserted in member 7, said member being of greater length than the shaft, and therefore, leaving a space for the 'down ward movement of the shaft when pressure is applied at its upper end by the reduced extension 4 of shaft 3, thus forcing the collar 16 into abutment with. head 8 and forcing the shaft downward through the collar.

In practice, it will be understood that member 7 will be made of any suitable diameter and length, and that when it is de sired to lessen the length thereof, the neces-- sary spacing devices 11 may be inserted, although this shortening of the length of member 7 may be accomplished by a number of different means. It will also be under-- stood that there will be a series of spacing devices 11,'and sleeves 141- and 1.7 of varying dimensions so that shafts of va rying lengths,

diameters, and with and without reduced end portions may be operated upon with but one thrust suspension device. it being understoodin this connection that the ultimate internal diameter of member 7 must be of substantially the same diameter as the shaft various lengths. In this construction the closure 8 is provided with a threaded opening 9 engaged by a threaded operating shaft lSTequipped at its upper end with a false bottom 19 and at its lower end and exterior to member 7 with an operating handle 20 threaded to shaft 18 or secured. in any other suitable manner. The operation of this modification will. be readily understood as the false bottom 19 will be advanced or receded in member 7 according to the length of the shaft to be operated upon, being miderstood that with the construction just described, there will be no necessity for a series of members ll to accommodate shafts of different length hereinabove referred to.

From the above description it will be apparent that I have produced a device of the charm-lei: set forth which possesses all of the features of advantage pointed out as desirable, and while I have described and claimed the preferred embodiment of the same, I reserve the right to make all changes properly falling within the spirit and scope of the appended claims.

I claim: I

1. In a device of the characterdescribed, a tubular member adapted to receive a shaft and. provided with a closure for engagement by the enclosed end of the shaft, and means for supporting said member so that itshall be subjected to tensile strain pressure imposed by said shaft on said closure.

2 In a device of the character described, a tubular member open at one end and adapted to receive a shaft, a false bottom for varying the distance between said open end and the bottom thereof, and means for supporting said member so that it shall be subjected to tensile strain by pressure imposed by the shaft on said first-named means.

8. In a device of the character described, a tubular member open at one end and adapted to receive a shaft, a closure at the other end of said member, a device forming a false bottom adapted for insertion in said member to vary the distance between the open end of the member and the bottom thereof, and means for supporting said member so that it shall be subjected to tensile strain by prossu imposed by the shaft on said first-named device.

4. In a device of the character described, a tubular member adapted to receive a shaft, a closure at one end of said member, a device adapted for insertion in said member to vary the diameter thereof, and means for supporting said member so that it shall be subjected to tensile strain by pressure imposed by the shaft on said clossure,

5. In a device of the character described, a tubular member open at one end and adapted to receive a shaft, a closure at the other end of said member, a device forming a false bottom adapted to abut said closure and vary the distance between the open end of the member and, the bottom thereof, a second device adapted for insertion in said member to vary the diameter thereof, and means or supporting said member so that it shall be subjected to tensile strain by pressure imposed by the shaft on said firstnamed device.

6. In a device of the character described, a tubular member open at one end and adapted to receive a shaft, a false bottom having: threaded relation with said tubular member against which said shaft is adapted to abut, and means for supporting said member so that it shall be subjected to a tensile strain by pressure applied by said shaft on said threaded means.

7. In a device of the character described, a tubular member adapted to receive a shaft, a closure at one end of said member, a false bottom for said member, means exterior to the member for adjusting said false bottom, and means for supporting said member so that it shall be subjected to a tensile strain by pressure applied by said shaft on said threaded means.

8. In a device of the character described, a tubular member adapted to receive a shaft, a closure provided with a threaded opening at one end of said member, a false bottom in said member, an operating shaft secured to said false bottom and having threaded engagement with said closure, and means for supporting said member so that it shall be subjected to a tensile strain by pressure applied by said shaft on said threaded means.

In Witness whereof I hereunto afiix my signature.

WILLIAM A. JENNINGS. 

